TECHNICAL SPECIFICATIONS
IQnfc+ Near Field Communication Test System TM
© 2016 LitePoint, A Teradyne Company. All rights reserved.
Introduction Near field communication (NFC) is a set of short-range wireless technologies that communicates through magnetic field induction between electronic devices in close proximity. As NFC offers safe and simple communications between electronic devices, many NFC applications, such as mobile payment and short peer-to-peer transactions, are fast gaining in popularity. It is important to ensure NFC-enabled products meet all measures of quality and provide a consistent and exceptional user experience. IQnfc+ is a wireless test solution for NFC-enabled devices that focuses on characterizing the NFC physical layer and ensuring product quality. IQnfc+ supports measurements of NFC Forum analog test cases, as well as EMVCo PICC/PCD L1 test cases.
Simple and Flexible Tests for NFC devices IQnfc+ consists of two hardware components: the test instrument and test coils. The test instrument contains the main NFC test functional blocks, including analyzer and NFC transceiver. It communicates with an external computer for data transfer and signal processing. The test coils serve as the communication interface with the Device Under Test (DUT). We support all 8 test coils (Poller/PCD and Listener/PICC) that are defined in the NFC Forum and EMVCo.
Sense
Matching circuit
Level TX
USB MON1 MON2 MONH
Listener/PICC Test Coil VNA (Reserved for future)
Matching circuit
Poller/PCD Test Coil
Sense TX
TX MOD TX RF
IQnfc+ Test Instrument
Test Fixture
PC: Tester control and data processing Orange Path: signal output Green Path: signal input
Figure 1. Example test configuration
Near Field Communication Test System 2
IQnfc+ Test Instrument Specifications Analyzer Parameter
Ports
Value
MON1, MON2
2 Vpp, +/-1 V Max.
MONH
30 Vpp, +/-15 V Max.
MON1, MON2
+/-5% (50 mVpp to 2 Vpp, +/- 25 mV to +/-1 V)
MONH
+/-5% (700 mVpp to 30 Vpp, +/- 350 mV to +/-15 V)
Frequency range
MON1, MON2, MONH
12 to 20 MHz
Frequency accuracy
MON1, MON2, MONH
< +/-8 ppm (< +/-100 Hz @ 13.56 MHz)
Quantization
MON1, MON2, MONH
14 bits
Spurious (non-harmonic)
MON1, MON2, MONH
< -60 dBc
Input return loss
MON1, MON2
> 15 dB
MON1, MON2
50 ohms
MONH
1 Mohm || 15 pF
Ports
Value
TXRF
0.2 to 20 Vpp (re: 50 ohms)
TXMOD
Pulse Amplitude: 0 to 5.5 V (re: 50 ohms) Pulse Offset: -2 to +3 V (re: 50 ohms)
Output power P1 dB
TXRF
> 30 dBm
Output voltage accuracy
TXRF, TXMOD
+/- 10% with regard to set level
TXRF
0.25 dB
TXMOD
1 mV
Output return loss
TXRF
> 23.1 dB
Output impedance
TXRF, TXMOD
50 ohms
Frequency range
TXRF
13.56 +/- 0.01 MHz
Frequency accuracy
TXRF, TXMOD
< +/-8 ppm (< +/-100 Hz @ 13.56 MHz)
Frequency resolution
TXRF
10Hz
Spurious
TXRF
< -60 dBc (13.56 +/-2 MHz)
Max input voltage
Input voltage accuracy
Input impedance
Transmitter Parameter
Output voltage range
Output voltage resolution
Near Field Communication Test System 3
NFC Measurement Specifications Parameter
Ports
Value
Standard
ISO14443A/B, ISO18092, EMVco, Felica, NFC A/B/F/P2P
Operation mode
Target and Initiator emulation
Data rate
Support various NFC data rates analysis
106, 212, 424 and 848 kbps
Field strength
Measure carrier field strength (DUT as initiator)
Relative measurement, DUT and Position dependent. Resonator & Q selection dependent.
Frequency accuracy
Measure DUT frequency error (DUT as initiator)
< ±100 Hz
Target frame delay time
Measure the DUT response time (DUT as target)
Tester contribution < ±20 ns
Modulation depth/index/ timing profile
Measure waveform shape (DUT as initiator and target)
This is a relative measurement: dependent on DUT, position, resonator and Q selection.
Overshoot
Overshoot following the rising and falling edges
< ± 0.5 %
Rise and Fall time
Measure the rise and fall time as defined in the standards
< ± 2/fc seconds
Rx sensitivity
Min detectable field strength (DUT as initiator and target)
This is a relative measurement: dependent on DUT, position, resonator and Q selection.
Payload data
Provide results of received payload data (DUT as initiator and target)
CRC error
Provide results of CRC error (DUT as initiator and target)
Near Field Communication Test System 4
IQnfc+ Test Instrument Port Description Front Panel
I/O
Function
Type
MON1
Listener/PICC signal input
BNC female
MON2
Poller/PCD signal input
BNC female
MONH
Listener/PICC level input (DC+RF)
BNC female
VNA
Resonant sweep output
BNC female
TX MOD
Listener/PICC signal output
BNC female
TXRF
Poller/PCD signal output
BNC female
TEST HEAD
Digital control and power for control of test head
Proprietary
Status Indicator
Blinking Green: application loading Green: No fault detected, ready to use Orange: software fault Red: power on without established USB connection Off: Power off
LED
I/O
Function
Type
Reference input
13.56 MHz clock reference
BNC female
Marker out / trigger in 1
TTL compatible
BNC female
Marker out / trigger in 2
TTL compatible
BNC female
USB
USB 2.0 compatible connection to external controller
USB Type B
AC in
AC power input
100 to 240 VAC (automatically switched) 50 to 60 Hz Includes hard power switch
Rear Panel
Near Field Communication Test System 5
General and Environmental Dimensions
14.782” L X 16.707” W X 2.093” H
Weight
7.9 pounds
Power requirements
90-260 VAC, 47-63 Hz;
